diff --git a/.hgtags b/.hgtags
index 8c66ada42d..12ac256c9c 100644
--- a/.hgtags
+++ b/.hgtags
@@ -26,3 +26,4 @@ f96b64cc151c46434ef2296fd5b76a3c64e98c87 5.0.0
 0966476e7aafe452299f7f4246b04f5c2fedaec8 6.0.0
 5f8d8c56eac6b464fb7c3b3efb67a0b9a6237e01 6.2.0
 9f7af115ae8cec630199577cc4feb3cf79c07799 6.4.0
+fe8bf7ab723a792956c5e278e5f73cc44652d4fc 6.6.0